EP4026607A4 - Appareil de production d'une solution aqueuse acide et procédé de production d'une solution aqueuse acide - Google Patents

Appareil de production d'une solution aqueuse acide et procédé de production d'une solution aqueuse acide Download PDF

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Publication number
EP4026607A4
EP4026607A4 EP20860626.9A EP20860626A EP4026607A4 EP 4026607 A4 EP4026607 A4 EP 4026607A4 EP 20860626 A EP20860626 A EP 20860626A EP 4026607 A4 EP4026607 A4 EP 4026607A4
Authority
EP
European Patent Office
Prior art keywords
producing
aqueous solution
acid aqueous
acid
solution
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20860626.9A
Other languages
German (de)
English (en)
Other versions
EP4026607A1 (fr
Inventor
Manabu Ozawa
Yoshinori Nishiki
Masaaki Kato
Rie Morita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
De Nora Permelec Ltd
Original Assignee
De Nora Permelec Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by De Nora Permelec Ltd filed Critical De Nora Permelec Ltd
Publication of EP4026607A1 publication Critical patent/EP4026607A1/fr
Publication of EP4026607A4 publication Critical patent/EP4026607A4/fr
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/4618—Devices therefor; Their operating or servicing for producing "ionised" acidic or basic water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
    • B01D61/44—Ion-selective electrodialysis
    • B01D61/46—Apparatus therefor
    • B01D61/463—Apparatus therefor comprising the membrane sequence AC or CA, where C is a cation exchange membrane
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
    • C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/24—Halogens or compounds thereof
    • C25B1/26—Chlorine; Compounds thereof
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/28—Per-compounds
    • C25B1/30—Peroxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/08—Specific process operations in the concentrate stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/18—Details relating to membrane separation process operations and control pH control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/25—Recirculation, recycling or bypass, e.g. recirculation of concentrate into the feed
    • B01D2311/252—Recirculation of concentrate
    • B01D2311/2523—Recirculation of concentrate to feed side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/26—Further operations combined with membrane separation processes
    • B01D2311/2684—Electrochemical processes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • C02F1/4674—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation with halogen or compound of halogens, e.g. chlorine, bromine
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46133—Electrodes characterised by the material
    • C02F2001/46138—Electrodes comprising a substrate and a coating
    • C02F2001/46142—Catalytic coating
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46152—Electrodes characterised by the shape or form
    • C02F2001/46157—Perforated or foraminous electrodes
    • C02F2001/46161—Porous electrodes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46152—Electrodes characterised by the shape or form
    • C02F2001/46157—Perforated or foraminous electrodes
    • C02F2001/46161—Porous electrodes
    • C02F2001/46166—Gas diffusion electrodes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/4618—Devices therefor; Their operating or servicing for producing "ionised" acidic or basic water
    • C02F2001/46185—Devices therefor; Their operating or servicing for producing "ionised" acidic or basic water only anodic or acidic water, e.g. for oxidizing or sterilizing
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4618—Supplying or removing reactants or electrolyte
    • C02F2201/46185—Recycling the cathodic or anodic feed
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/14—Maintenance of water treatment installations

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Water Supply & Treatment (AREA)
  • Electrochemistry (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Urology & Nephrology (AREA)
  • Analytical Chemistry (AREA)
  • Molecular Biology (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
EP20860626.9A 2019-09-05 2020-09-04 Appareil de production d'une solution aqueuse acide et procédé de production d'une solution aqueuse acide Pending EP4026607A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019162099A JP7232158B2 (ja) 2019-09-05 2019-09-05 酸性水溶液の製造装置及び酸性水溶液の製造方法
PCT/JP2020/033588 WO2021045191A1 (fr) 2019-09-05 2020-09-04 Appareil de production d'une solution aqueuse acide et procédé de production d'une solution aqueuse acide

Publications (2)

Publication Number Publication Date
EP4026607A1 EP4026607A1 (fr) 2022-07-13
EP4026607A4 true EP4026607A4 (fr) 2023-05-31

Family

ID=74847890

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20860626.9A Pending EP4026607A4 (fr) 2019-09-05 2020-09-04 Appareil de production d'une solution aqueuse acide et procédé de production d'une solution aqueuse acide

Country Status (5)

Country Link
US (1) US12600649B2 (fr)
EP (1) EP4026607A4 (fr)
JP (1) JP7232158B2 (fr)
AU (1) AU2020341933B2 (fr)
WO (1) WO2021045191A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3620438A1 (fr) * 2018-09-10 2020-03-11 Covestro Deutschland AG Procédé et dispositif de nettoyage des eaux usées
JP7310867B2 (ja) * 2021-09-28 2023-07-19 栗田工業株式会社 超純水中のイオン成分の分析方法及び装置
JP2023177168A (ja) * 2022-06-01 2023-12-13 国立研究開発法人産業技術総合研究所 化学センサ、電極の再生方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0483890A (ja) * 1990-07-24 1992-03-17 Permelec Electrode Ltd 電解用電極及びその製造方法
IT1248564B (it) 1991-06-27 1995-01-19 Permelec Spa Nora Processo di decomposizione elettrochimica di sali neutri senza co-produzione di alogeni o di acido e cella di elettrolisi adatta per la sua realizzazione.
JPH06269777A (ja) * 1993-03-16 1994-09-27 Asahi Glass Co Ltd 造水プロセス
JP3137831B2 (ja) * 1994-05-09 2001-02-26 オルガノ株式会社 膜処理装置
JP3164970B2 (ja) 1994-06-17 2001-05-14 株式会社日立製作所 一価イオンの中性塩を含む排水の処理方法
JP2002285369A (ja) 2001-03-23 2002-10-03 Permelec Electrode Ltd 過酸化水素水及び次亜ハロゲン化物の製造用電解槽及び方法
JP3875922B2 (ja) * 2002-06-03 2007-01-31 ペルメレック電極株式会社 過酸化水素製造用電解セル
JP3978124B2 (ja) * 2002-12-03 2007-09-19 三菱重工業株式会社 有機性廃棄物処理システムにおける次亜塩素酸系薬剤の自給方法及びその設備
KR100868493B1 (ko) * 2007-06-11 2008-11-12 김문수 해양심층수로부터 미네랄수 및 미네랄 소금의 제조 방법
JP5873771B2 (ja) 2012-07-06 2016-03-01 水ｉｎｇ株式会社 有機性廃水の処理方法及び処理装置
JP7222240B2 (ja) 2018-03-16 2023-02-15 株式会社リコー 液滴形成装置及び液滴形成方法
JP7100001B2 (ja) * 2019-09-05 2022-07-12 横河電機株式会社 排水の処理方法及び排水の処理装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *

Also Published As

Publication number Publication date
US12600649B2 (en) 2026-04-14
JP7232158B2 (ja) 2023-03-02
AU2020341933A1 (en) 2022-03-24
EP4026607A1 (fr) 2022-07-13
US20220242757A1 (en) 2022-08-04
WO2021045191A1 (fr) 2021-03-11
JP2021037498A (ja) 2021-03-11
AU2020341933B2 (en) 2024-11-07

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